<template>
  <Dialog :title="dialogTitle" v-model="dialogVisible">
    <el-form
      ref="formRef"
      :model="formData"
      :rules="formRules"
      label-width="100px"
      v-loading="formLoading"
    >
      <el-form-item label="选择课程" prop="courseId">
         <el-tree-select
          v-model="formData.courseId"
          :data="courseTree"
          :props="{...defaultProps, label: 'name'}"
          check-strictly
          default-expand-all
          placeholder="请选择课程"
        />
      </el-form-item>
       <el-row>
        <el-col :span="12">
          <el-form-item label="单元名称" prop="unitName">
            <el-input v-model="formData.unitName" placeholder="请输入课程单元名称" />
          </el-form-item>
        </el-col>
        <el-col :span="12">
          <el-form-item label="单元简称" prop="unitNameShort">
            <el-input v-model="formData.unitNameShort" placeholder="请输入课程单元简称" />
          </el-form-item>
        </el-col>
      </el-row>
      <el-row>
        <el-col :span="12">
          <el-form-item label="时长" prop="duration">
            <template #label>
              <Tooltip
                message="时长单位为：分钟"
                title="时长"
              />
            </template>
            <el-input-number
              v-model="formData.duration"
              placeholder="请输入单元时长"
              :min="0"
              :precision="0"
              class="!w-1/1"
            />
          </el-form-item>
        </el-col>
        <el-col :span="12">
          <el-form-item label="排序" prop="sort">
          <el-input-number v-model="formData.sort" :min="0" clearable controls-position="right" class="!w-1/1"/>
        </el-form-item>
        </el-col>
      </el-row>

      <el-form-item label="师资配备" prop="teacherIds">

          <div class="flex flex-wrap gap-2">
          <div v-for="user in selectedUsers" :key="user.id"
            class="bg-gray-100 h-35px rounded-3xl flex items-center pr-8px dark:color-gray-600 position-relative">
            <el-avatar class="!m-5px" :size="28" v-if="user.avatar" :src="user.avatar" />
            <el-avatar class="!m-5px" :size="28" v-else>
              {{ user.nickname.substring(0, 1) }}
            </el-avatar>
            {{ user.nickname }}
            <Icon icon="ep:close" class="ml-2 cursor-pointer hover:text-red-500" @click="handleRemoveUser(user)" />
          </div>
          <el-button type="primary" link @click="openUserSelect">
            <Icon icon="ep:plus" />选择人员
          </el-button>
        </div>
      </el-form-item>
      
      <el-form-item label="活动物资">

        <el-select v-model="formData.goodsNames" multiple placeholder="请选择">
          <el-option
            v-for="item in goodsList"
            :key="item.assetName"
            :label="item.assetName"
            :value="item.assetName!"
          />
        </el-select>
      </el-form-item>
      
      <el-row>
        <el-col :span="12">
          <el-form-item label="教案文件" prop="noteUrls">
            <UploadFile v-model="formData.noteUrls" />
          </el-form-item>
        </el-col>
        <el-col :span="12">
          <el-form-item label="活动反馈" prop="feedbackUrls">
            <UploadFile v-model="formData.feedbackUrls" />
          </el-form-item>
        </el-col>
      </el-row>
      
      <el-form-item label="图标" prop="iconUrl">
        <UploadImg v-model="formData.iconUrl" />
      </el-form-item>
      <el-form-item label="简介" prop="unitBrief">
        <el-input v-model="formData.unitBrief" type="textarea" :autosize="{ minRows: 4, maxRows: 8 }" placeholder="请输入课程单元简介" />
      </el-form-item>
      
      
      <el-form-item label="状态" prop="status">
        <el-radio-group v-model="formData.status">
          <el-radio
            v-for="dict in getIntDictOptions(DICT_TYPE.COMMON_STATUS)"
            :key="dict.value"
            :label="dict.value"
          >
            {{ dict.label }}
          </el-radio>
        </el-radio-group>
      </el-form-item>
    </el-form>
    <template #footer>
      <el-button @click="submitForm" type="primary" :disabled="formLoading">确 定</el-button>
      <el-button @click="dialogVisible = false">取 消</el-button>
    </template>
  </Dialog>

    <!-- 用户选择弹窗 -->
    <UserSelectForm
    ref="userSelectFormRef"
    isInitGet
    notSuccessMessage
    @confirm="handleUserSelectConfirm"
  />

</template>
<script setup lang="ts">
import { getIntDictOptions, DICT_TYPE } from '@/utils/dict'
import { CourseUnitApi, CourseUnitVO } from '@/api/school/courseunit'
import { CourseApi } from '@/api/school/course'
import { defaultProps, handleTree } from '@/utils/tree'
import { CommonStatusEnum } from '@/utils/constants'
import { UserVO } from '@/api/system/user'
// import { ProductApi, ProductVO } from '@/api/erp/product/product'
import { AssetsFixedApi, AssetsFixedSimpleVO } from '@/api/school/assets/fixed'

/** 课程单元 表单 */
defineOptions({ name: 'CourseUnitForm' })

const { t } = useI18n() // 国际化
const message = useMessage() // 消息弹窗

const dialogVisible = ref(false) // 弹窗的是否展示
const dialogTitle = ref('') // 弹窗的标题
const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
const formType = ref('') // 表单的类型：create - 新增；update - 修改
const formData = ref({
  id: undefined,
  courseId: undefined,
  unitName: undefined,
  unitNameShort: undefined,
  unitBrief: undefined,
  iconUrl: undefined,
  duration: undefined,
  teacherIds: undefined,
  goodsNames: [],
  noteUrls: [],
  feedbackUrls: [],
  sort: undefined,
  status: CommonStatusEnum.ENABLE,
  visibility:'',
})

const formRules = reactive({
  courseId: [{ required: true, message: '课程编号不能为空', trigger: 'blur' }],
  unitName: [{ required: true, message: '课程单元名称不能为空', trigger: 'blur' }],
  unitBrief: [{ required: true, message: '课程单元简介不能为空', trigger: 'blur' }],
  duration: [{ required: true, message: '单元时长(分钟)不能为空', trigger: 'blur' }],
  status: [{ required: true, message: '状态不能为空', trigger: 'blur' }],
  teacherIds: [{ required: true, message: '师资配备不能为空', trigger: 'blur' }],
})
const formRef = ref() // 表单 Ref
const selectedUsers = ref<UserVO[]>([])
const userSelectFormRef = ref()
const goodsList = ref([] as AssetsFixedSimpleVO[]) // 物资列表


/** 处理用户选择确认 */
const handleUserSelectConfirm = (_, users: UserVO[]) => {
  selectedUsers.value = users || []
}

/** 打开人员选择 */
const openUserSelect = () => {
  userSelectFormRef.value.open(0, selectedUsers.value)
}

/** 移除人员 */
const handleRemoveUser = (user: UserVO) => {
  selectedUsers.value = selectedUsers.value.filter((userItem: any) => userItem.id !== user.id)
}

/** 打开弹窗 */
const open = async (type: string, visibility:string, id?: number) => {
  dialogVisible.value = true
  dialogTitle.value = t('action.' + type)
  formType.value = type
  resetForm()

  //赋值 visibility
  formData.value.visibility = visibility

  // 修改时，设置数据
  if (id) {
    formLoading.value = true
    try {
      formData.value = await CourseUnitApi.getCourseUnit(id)
    } finally {
      formLoading.value = false
    }
  }

    //查询课程树
  await getCourseTree()
    // 加载物资列表
    goodsList.value = await AssetsFixedApi.getAssetsFixedList()
  // goodsList.value = await ProductApi.getProductSimpleList()

}
watch(
  () => {
    return {
      formData: formData.value,
      userList: userSelectFormRef.value?.userList
    }
  },
  ({ formData, userList }: any) => {
  if (formData?.teacherIds?.length && userList?.length) {
      // 设置选中人员
      selectedUsers.value = userList.filter((userItem: any) =>
        formData.teacherIds.includes(userItem.id)
      )
    }
  },
  {
    deep: true
  }
)
defineExpose({ open }) // 提供 open 方法，用于打开弹窗

/** 提交表单 */
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
const submitForm = async () => {
  //先赋值，方便表单校验
  const userIds: any = selectedUsers.value?.map((user: any) => user.id)
  formData.value.teacherIds = userIds
  // 校验表单
  await formRef.value.validate()
  // 提交请求
  formLoading.value = true
  try {
    
    const data = formData.value as unknown as CourseUnitVO
    if (formType.value === 'create') {
      await CourseUnitApi.createCourseUnit(data)
      message.success(t('common.createSuccess'))
    } else {
      await CourseUnitApi.updateCourseUnit(data)
      message.success(t('common.updateSuccess'))
    }
    dialogVisible.value = false
    // 发送操作成功的事件
    emit('success')
  } finally {
    formLoading.value = false
  }
}

/** 重置表单 */
const resetForm = () => {
  formData.value = {
    id: undefined,
    courseId: undefined,
    unitName: undefined,
    unitNameShort: undefined,
    unitBrief: undefined,
    iconUrl: undefined,
    duration: undefined,
    teacherIds: undefined,
    goodsNames: [],
    noteUrls: [],
    feedbackUrls: [],
    sort: undefined,
    status: CommonStatusEnum.ENABLE,
    visibility:'',
  }
  formRef.value?.resetFields()
  //清空人员选择器
  selectedUsers.value = []
}

/** 获得课程树 */
const courseTree = ref<Tree[]>([]) // 树形结构
const getCourseTree = async () => {
  courseTree.value = []
  const data = await CourseApi.getSimpleCourseList({visibility:formData.value.visibility})
  const root: Tree = { id: 0, name: '顶级课程', children: [] }
  root.children = handleTree(data, 'id', 'parentId')
  courseTree.value.push(root)
}

</script>